== sanity test 101a: check read-ahead for random reads === 21:53:22 (1767840802) nreads: 10000 file size: 96MB 11.718636s, 55.9246MB/s osc.lustre-OST0000-osc-ffff8a21cac53800.rpc_stats= snapshot_time: 1767840815.894949860 secs.nsecs start_time: 1767840803.248146810 secs.nsecs elapsed_time: 12.646803050 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 7 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 0 0 0 osc.lustre-OST0001-osc-ffff8a21cac53800.rpc_stats= snapshot_time: 1767840815.895019888 secs.nsecs start_time: 1767840803.248162323 secs.nsecs elapsed_time: 12.646857565 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 194 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 2: 0 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 0 0 0 | 0 0 0 16: 5070 100 100 | 0 0 0 32: 0 0 100 | 0 0 0 64: 0 0 100 | 0 0 0 128: 0 0 100 | 0 0 0 256: 0 0 100 | 99 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5070 100 100 | 94 94 94 2: 0 0 100 | 5 5 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 1 1 1 1: 0 0 0 | 0 0 1 2: 0 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 4 0 0 | 0 0 1 32: 6 0 0 | 0 0 1 64: 16 0 0 | 0 0 1 128: 27 0 1 | 0 0 1 256: 53 1 2 | 1 1 2 512: 109 2 4 | 2 2 4 1024: 207 4 8 | 4 4 8 2048: 432 8 16 | 8 8 16 4096: 862 17 33 | 16 16 32 8192: 1694 33 67 | 32 32 64 16384: 1657 32 100 | 35 35 100 llite.lustre-ffff8a21cac53800.read_ahead_stats= snapshot_time 1767840815.899625680 secs.nsecs start_time 1767840803.254365723 secs.nsecs elapsed_time 12.645259957 secs.nsecs hits 76050 samples [pages] misses 5070 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 76050 samples [pages] failed_to_fast_read 5070 samples [pages]